can smile
Verbo regular: smile - smiled- smiled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can smile
you can smile
she can smile
we can smile
you can smile
they can smile 	I can be smiling
you can be smiling
she can be smiling
we can be smiling
you can be smiling
they can be smiling	I can have smiled
you can have smiled
she can have smiled
we can have smiled
you can have smiled
they can have smiled	I can have been smiling
you can have been smiling
she can have been smiling
we can have been smiling
you can have been smiling
they can have been smiling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot smile
you cannot smile
she cannot smile
we cannot smile
you cannot smile
they cannot smile 	I cannot be smiling
you cannot be smiling
she cannot be smiling
we cannot be smiling
you cannot be smiling
they cannot be smiling	I cannot have smiled
you cannot have smiled
she cannot have smiled
we cannot have smiled
you cannot have smiled
they cannot have smiled	I cannot have been smiling
you cannot have been smiling
she cannot have been smiling
we cannot have been smiling
you cannot have been smiling
they cannot have been smiling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I smile?
can you smile?
can she smile?
can we smile?
can you smile?
can they smile? 	can I be smiling?
can you be smiling?
can she be smiling?
can we be smiling?
can you be smiling?
can they be smiling? 	can I have smiled?
can you have smiled?
can she have smiled?
can we have smiled?
can you have smiled?
can they have smiled? 	can I have been smiling?
can you have been smiling?
can she have been smiling?
can we have been smiling?
can you have been smiling?
can they have been smiling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not smile?
can you not smile?
can she not smile?
can we not smile?
can you not smile?
can they not smile? 	can I not be smiling?
can you not be smiling?
can she not be smiling?
can we not be smiling?
can you not be smiling?
can they not be smiling? 	can I not have smiled?
can you not have smiled?
can she not have smiled?
can we not have smiled?
can you not have smiled?
can they not have smiled? 	can I not have been smiling?
can you not have been smiling?
can she not have been smiling?
can we not have been smiling?
can you not have been smiling?
can they not have been smiling?